How Does 'The Great Demon System' Blend Fantasy And Modern Settings?

A new world with nearly unlimited possibilities. A system, classes, magic, skills and monsters. Sounds exciting? But for Jin it didn't go quite as he expected nor was there a princess or a Goddess to welcome him to this new world, his only hope was the system he received. Left alone in the darkness, How will he survive when he wasn't human in the first place?

Starting with a boy named Daffa Setyawan who is constantly bullied, he unexpectedly gains a system power to eliminate the bullies at his school. However, instead of just targeting the bullies, he inadvertently attracts the attention of all the gangs in the city, making himself the hunted. Will he succeed in conquering both the school and the city, and be able to control the situation?

Miaka Von Speltsper, the myth, the legend and the daughter of two Gods. Miaka, the Demon King and the head of the Dark Council is the most powerful demon ever known to mankind, but she has a secret. She’s a hybrid. And the world she lives in has hunted down and eliminated every single hybrid in all the dimensions. But now…someone knows her secret, someone who has the power to destroy her. However, the world is changing and one of those changes is Kaleb Takeshi, the man with extraordinary eyes who has stolen Miaka’s heart with just one glance. But there is something about Kaleb that Miaka can sense but can’t describe. And not only is he human, he’s an enemy who has decided to give his loyalty to her. In this world of lies, deceit and betrayal; can Miaka trust her heart or will she have to choose century’s old traditions to stay alive? Because if she dies, it will truly be the end of the world.

When the Supreme God of Heavens disappeared, the gods of the Greeks, Norse, Mayans, Egyptians, Chinese, and many more sent their young mortal champions to a magical world in order to participate in the Game of Heavens and Earth on their behalf to win the divine throne. However, the young mortals used their powers, weapons, and tools that were bestowed upon them to form themselves into guilds and create a paradise for everyone. To any kid from Earth, an exciting adventure and new beginning await them, and Sam Roche is one of those lucky chosen ones — or is he still unlucky? Since everything is in peace, Sam tries to build a new life in the City of New Beginning while hiding his dark secrets from his new friends about the sins he committed back on Earth. Eventually, Sam and his friends discover that the strongest guilds have long controlled the paradise, and their rivalry might spark a war that will engulf the land. Wanting to get away as much as possible, they decide that they form their own guild and leave the city. However, a powerful guild is threatening the fragile peace of the magical world in order to win the Game of Heavens and Earth. Sam must either run away to save himself or become a hero to save not only his friends but both worlds.

Daemon who was once a useless, powerless man despised and bullied by others, worked his way to the top, facing many challenges and opposition from crooked and twisted ministers, sinister and wicked demon Lords who are trying to bring him down, becoming the Demon Emperor, a figure who now holds the highest authority. He swore revenge against the humans - the ones who ruin his family, massacred his innocent family and left him orphan. There's a big organisation called the Demon Hunters whose aim is to rid the world of demons, and they were the ones who killed Daemon's family. Amidst the chaos, he encounters Victoria Bennett, an unsuspecting human who stumbles into his realm searching for her missing brother, igniting a forbidden romance between two souls from opposing worlds. However, their love faces insurmountable obstacles as both humans and Victoria's own family relentlessly strive to tear them apart. Will Daemon and his loyal Demon Lords succeed in their audacious mission? Can they find solace in one another, despite the deceit and dark enigmas they harbor? Can the flame of love burn brightly between a human and a demon, defying the shackles of an ancient curse that has endured for countless millennia? And in the ultimate test of devotion, what choice will Victoria make: her blood ties or the irrevocable love of her life?

In a world with machines and angels, the main character has to become the strongest to avoid getting killed and discarded.